Wireless Advanced - TRENDnet TEW-637AP Manual

WIRELESS ADVANCED

Beacon Interval
Beacons are packets sent by a wireless Access Point to synchronize wireless devices. Specify a Beacon
Period value between 20 and 1000. The default value is set to 100 milliseconds.
Fragment Threshold
This setting should remain at its default value of 2346. Setting the Fragmentation value too low may result
in poor performance.
RTS Threshold
This setting should remain at its default value of 2347. If you encounter inconsistent data flow, only minor
modifications to the value are recommended.
Preamble Type: Long Preamble / Short Preamble
The radio preamble is a section of data at the head of the Physical Layer Convergence Protocol that
contains information that the device and client devices need when sending and receiving packets.
The 18 byte ("long preamble") preamble is used to signal "here is a train of data coming" to the receiver.
The 802.11b standard gives an option of reducing the size of the PLCP preamble to 9 bytes ("short
preamble"), this significantly increases the throughput performance at higher data rates.
One downside to the PLCP is that the PLCP preamble and header is always transmitted at 1Mbps,
regardless of the transmission rate for the rest of the data. This means that the transfer time is constant at
192 Usec (microseconds) for the PLCP with long preamble. The short preamble version does a little better,
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